"""
* | File        :	  epd7in5bc.py
* | Author      :   Waveshare team
* | Function    :   Electronic paper driver
* | Info        :
*----------------
* | This version:   V4.0
* | Date        :   2019-06-20
# | Info        :   python demo
-----------------------------------------------------------------------------
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documnetation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to  whom the Software is
furished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""

import logging

from inkycal.display.drivers import epdconfig

# Display resolution
EPD_WIDTH = 640
EPD_HEIGHT = 384


class EPD:
    def __init__(self):
        self.reset_pin = epdconfig.RST_PIN
        self.dc_pin = epdconfig.DC_PIN
        self.busy_pin = epdconfig.BUSY_PIN
        self.cs_pin = epdconfig.CS_PIN
        self.width = EPD_WIDTH
        self.height = EPD_HEIGHT

    # Hardware reset
    def reset(self):
        epdconfig.digital_write(self.reset_pin, 1)
        epdconfig.delay_ms(200)
        epdconfig.digital_write(self.reset_pin, 0)
        epdconfig.delay_ms(10)
        epdconfig.digital_write(self.reset_pin, 1)
        epdconfig.delay_ms(200)

    def send_command(self, command):
        epdconfig.digital_write(self.dc_pin, 0)
        epdconfig.digital_write(self.cs_pin, 0)
        epdconfig.spi_writebyte([command])
        epdconfig.digital_write(self.cs_pin, 1)

    def send_data(self, data):
        epdconfig.digital_write(self.dc_pin, 1)
        epdconfig.digital_write(self.cs_pin, 0)
        epdconfig.spi_writebyte([data])
        epdconfig.digital_write(self.cs_pin, 1)

    def ReadBusy(self):
        logging.debug("e-Paper busy")
        while (epdconfig.digital_read(self.busy_pin) == 0):  # 0: idle, 1: busy
            epdconfig.delay_ms(100)
        logging.debug("e-Paper busy release")

    def init(self):
        if (epdconfig.module_init() != 0):
            return -1

        self.reset()

        self.send_command(0x01)  # POWER_SETTING
        self.send_data(0x37)
        self.send_data(0x00)

        self.send_command(0x00)  # PANEL_SETTING
        self.send_data(0xCF)
        self.send_data(0x08)

        self.send_command(0x30)  # PLL_CONTROL
        self.send_data(0x3A)  # PLL:  0-15:0x3C, 15+:0x3A

        self.send_command(0x82)  # VCM_DC_SETTING
        self.send_data(0x28)  # all temperature  range

        self.send_command(0x06)  # BOOSTER_SOFT_START
        self.send_data(0xc7)
        self.send_data(0xcc)
        self.send_data(0x15)

        self.send_command(0x50)  # VCOM AND DATA INTERVAL SETTING
        self.send_data(0x77)

        self.send_command(0x60)  # TCON_SETTING
        self.send_data(0x22)

        self.send_command(0x65)  # FLASH CONTROL
        self.send_data(0x00)

        self.send_command(0x61)  # TCON_RESOLUTION
        self.send_data(self.width >> 8)  # source 640
        self.send_data(self.width & 0xff)
        self.send_data(self.height >> 8)  # gate 384
        self.send_data(self.height & 0xff)

        self.send_command(0xe5)  # FLASH MODE
        self.send_data(0x03)

        return 0

    def getbuffer(self, image):
        # logging.debug("bufsiz = ",int(self.width/8) * self.height)
        buf = [0xFF] * (int(self.width / 8) * self.height)
        image_monocolor = image.convert('1')
        imwidth, imheight = image_monocolor.size
        pixels = image_monocolor.load()
        logging.debug('imwidth = %d  imheight =  %d ', imwidth, imheight)
        if (imwidth == self.width and imheight == self.height):
            logging.debug("Horizontal")
            for y in range(imheight):
                for x in range(imwidth):
                    # Set the bits for the column of pixels at the current position.
                    if pixels[x, y] == 0:
                        buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
        elif (imwidth == self.height and imheight == self.width):
            logging.debug("Vertical")
            for y in range(imheight):
                for x in range(imwidth):
                    newx = y
                    newy = self.height - x - 1
                    if pixels[x, y] == 0:
                        buf[int((newx + newy * self.width) / 8)] &= ~(0x80 >> (y % 8))
        return buf

    def display(self, imageblack, imagered):
        self.send_command(0x10)
        for i in range(0, int(self.width / 8 * self.height)):
            temp1 = imageblack[i]
            temp2 = imagered[i]
            j = 0
            while (j < 8):
                if ((temp2 & 0x80) == 0x00):
                    temp3 = 0x04  # red
                elif ((temp1 & 0x80) == 0x00):
                    temp3 = 0x00  # black
                else:
                    temp3 = 0x03  # white

                temp3 = (temp3 << 4) & 0xFF
                temp1 = (temp1 << 1) & 0xFF
                temp2 = (temp2 << 1) & 0xFF
                j += 1
                if ((temp2 & 0x80) == 0x00):
                    temp3 |= 0x04  # red
                elif ((temp1 & 0x80) == 0x00):
                    temp3 |= 0x00  # black
                else:
                    temp3 |= 0x03  # white
                temp1 = (temp1 << 1) & 0xFF
                temp2 = (temp2 << 1) & 0xFF
                self.send_data(temp3)
                j += 1

        self.send_command(0x04)  # POWER ON
        self.ReadBusy()
        self.send_command(0x12)  # display refresh
        epdconfig.delay_ms(100)
        self.ReadBusy()

    def Clear(self):
        self.send_command(0x10)
        for i in range(0, int(self.width / 8 * self.height)):
            self.send_data(0x33)
            self.send_data(0x33)
            self.send_data(0x33)
            self.send_data(0x33)

        self.send_command(0x04)  # POWER ON
        self.ReadBusy()
        self.send_command(0x12)  # display refresh
        epdconfig.delay_ms(100)
        self.ReadBusy()

    def sleep(self):
        self.send_command(0x02)  # POWER_OFF
        self.ReadBusy()

        self.send_command(0x07)  # DEEP_SLEEP
        self.send_data(0XA5)

        epdconfig.module_exit()
### END OF FILE ###
